:root {
  --td-brand-color: #0052D9;
  --td-brand-color-hover: #003CAB;
  --td-brand-color-active: #002A98;
  --td-brand-color-light: #ECF2FE;
  --td-brand-color-focus: #D9E2FF;

  --td-success-color: #2BA471;
  --td-warning-color: #E37318;
  --td-error-color: #D54941;

  --td-bg-color-page: #F3F3F3;
  --td-bg-color-container: #FFFFFF;
  --td-bg-color-secondarycontainer: #F3F3F3;
  --td-bg-color-container-hover: #F3F3F3;
  --td-bg-color-floating: #FFFFFF;

  --td-text-color-primary: rgba(0, 0, 0, 0.9);
  --td-text-color-secondary: rgba(0, 0, 0, 0.6);
  --td-text-color-placeholder: rgba(0, 0, 0, 0.4);
  --td-text-color-disabled: rgba(0, 0, 0, 0.26);
  --td-text-color-anti: #FFFFFF;
  --td-text-color-brand: #0052D9;

  --td-border-level-1-color: #E7E7E7;
  --td-border-level-2-color: #D9D9D9;
  --td-component-stroke: #D9D9D9;
  --td-component-border: #E7E7E7;

  --td-mask-active: rgba(0, 0, 0, 0.6);
  --td-shadow-1: 0 4px 10px rgba(0, 0, 0, 0.08);
  --td-shadow-2: 0 8px 20px rgba(0, 0, 0, 0.12);
  --td-shadow-inset: inset 0 0 0 1px var(--td-component-stroke);

  --td-radius-small: 3px;
  --td-radius-default: 6px;
  --td-radius-medium: 9px;
  --td-radius-large: 12px;
  --td-radius-round: 9999px;

  --td-comp-paddingLR-s: 8px;
  --td-comp-paddingLR-m: 12px;
  --td-comp-paddingLR-l: 16px;
  --td-comp-paddingTB-s: 4px;
  --td-comp-paddingTB-m: 8px;

  --td-font-family: PingFang SC, Microsoft YaHei, Helvetica Neue, Arial, sans-serif;
  --td-font-size-base: 14px;
  --td-font-size-s: 12px;
  --td-font-size-l: 16px;
  --td-line-height-base: 22px;
}


body[data-theme="dark"] {
  --td-brand-color: #4c8aff;
  --td-brand-color-hover: #366ef4;
  --td-brand-color-active: #2558D9;
  --td-brand-color-light: #1B2F51;
  --td-brand-color-focus: #003CAB;

  --td-success-color: #00A870;
  --td-warning-color: #DD8F18;
  --td-error-color: #E34D59;

  --td-bg-color-page: #181818;
  --td-bg-color-container: #242424;
  --td-bg-color-secondarycontainer: #2c2c2c;
  --td-bg-color-container-hover: #2c2c2c;
  --td-bg-color-floating: #2c2c2c;

  --td-text-color-primary: rgba(255, 255, 255, 0.9);
  --td-text-color-secondary: rgba(255, 255, 255, 0.55);
  --td-text-color-placeholder: rgba(255, 255, 255, 0.35);
  --td-text-color-disabled: rgba(255, 255, 255, 0.26);
  --td-text-color-anti: #FFFFFF;
  --td-text-color-brand: #4c8aff;

  --td-border-level-1-color: #3e3e3e;
  --td-border-level-2-color: #5e5e5e;
  --td-component-stroke: #5e5e5e;
  --td-component-border: #3e3e3e;

  --td-mask-active: rgba(0, 0, 0, 0.7);
  --td-shadow-1: 0 4px 10px rgba(0, 0, 0, 0.45);
  --td-shadow-2: 0 8px 20px rgba(0, 0, 0, 0.55);
}


* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: var(--td-font-family);
  font-size: var(--td-font-size-base);
  line-height: var(--td-line-height-base);
  color: var(--td-text-color-primary);
  background: var(--td-bg-color-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body { overflow: hidden; }

a { color: var(--td-brand-color); text-decoration: none; }
a:hover { color: var(--td-brand-color-hover); }

img { display: block; -webkit-user-drag: none; user-select: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--td-border-level-2-color);
  border-radius: var(--td-radius-round);
}
::-webkit-scrollbar-thumb:hover { background: var(--td-text-color-disabled); }


.page {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--td-bg-color-page);
}


.header {
  flex-shrink: 0;
  height: 56px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--td-bg-color-container);
  border-bottom: 1px solid var(--td-component-border);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--td-font-size-l);
  font-weight: 600;
  color: var(--td-text-color-primary);
}

.header-logo-mark {
  width: 28px;
  height: 28px;
  border-radius: var(--td-radius-default);
  background: var(--td-brand-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--td-text-color-anti);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

.header-link {
  padding: 6px 12px;
  border-radius: var(--td-radius-default);
  font-size: var(--td-font-size-base);
  color: var(--td-text-color-secondary);
  transition: all 0.15s ease;
}
.header-link:hover {
  background: var(--td-bg-color-container-hover);
  color: var(--td-text-color-primary);
}
.header-link.is-primary {
  color: var(--td-brand-color);
  background: var(--td-brand-color-light);
}
.header-link.is-primary:hover {
  background: var(--td-brand-color-focus);
  color: var(--td-brand-color-hover);
}

.theme-toggle {
  width: 32px;
  height: 32px;
  border-radius: var(--td-radius-default);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--td-text-color-secondary);
  transition: all 0.15s ease;
  margin-left: 4px;
}
.theme-toggle:hover {
  background: var(--td-bg-color-container-hover);
  color: var(--td-text-color-primary);
}
.theme-toggle svg { width: 18px; height: 18px; }


.main {
  flex: 1;
  min-height: 0;
  display: flex;
  justify-content: center;
  padding: 16px 24px 24px;
}

.content {
  width: 100%;
  max-width: 1080px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}


.card {
  background: var(--td-bg-color-container);
  border: 1px solid var(--td-component-border);
  border-radius: var(--td-radius-large);
  display: flex;
  flex-direction: column;
}

.card-header {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--td-component-border);
}

.card-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: var(--td-font-size-l);
  font-weight: 600;
  color: var(--td-text-color-primary);
}

.card-title-hint {
  font-size: var(--td-font-size-s);
  font-weight: 400;
  color: var(--td-text-color-placeholder);
}

.card-body {
  padding: 12px 16px;
  min-height: 0;
}

.recent-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}


.recent-card .card-body {
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-content: flex-start;
}
.recent-card .card-body.empty {
  color: var(--td-text-color-placeholder);
  font-size: var(--td-font-size-s);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
}


.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
}

.search-input {
  flex: 1;
  max-width: 360px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--td-radius-default);
  border: 1px solid var(--td-component-stroke);
  background: var(--td-bg-color-container);
  color: var(--td-text-color-primary);
  font-size: var(--td-font-size-base);
  font-family: inherit;
  transition: all 0.15s ease;
  outline: none;
}
.search-input::placeholder { color: var(--td-text-color-placeholder); }
.search-input:hover { border-color: var(--td-text-color-placeholder); }
.search-input:focus {
  border-color: var(--td-brand-color);
  box-shadow: 0 0 0 2px var(--td-brand-color-light);
}

.toolbar-spacer { flex: 1; }

.toolbar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--td-font-size-base);
  color: var(--td-text-color-secondary);
  white-space: nowrap;
}


.switch {
  position: relative;
  width: 36px;
  height: 20px;
  border-radius: var(--td-radius-round);
  background: var(--td-border-level-2-color);
  cursor: pointer;
  transition: background 0.2s ease;
  flex-shrink: 0;
}
.switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #FFFFFF;
  transition: transform 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}
.switch.is-checked { background: var(--td-brand-color); }
.switch.is-checked::after { transform: translateX(16px); }


.btn {
  height: 30px;
  padding: 0 14px;
  border-radius: var(--td-radius-default);
  font-size: var(--td-font-size-base);
  font-family: inherit;
  color: var(--td-text-color-primary);
  background: var(--td-bg-color-container);
  border: 1px solid var(--td-component-stroke);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.btn:hover { border-color: var(--td-brand-color); color: var(--td-brand-color); }
.btn:active { border-color: var(--td-brand-color-active); }
.btn-sm { height: 26px; padding: 0 10px; font-size: var(--td-font-size-s); }
.btn-tertiary {
  background: transparent;
  border-color: transparent;
  color: var(--td-text-color-secondary);
}
.btn-tertiary:hover {
  background: var(--td-bg-color-container-hover);
  color: var(--td-text-color-primary);
  border-color: transparent;
}
.btn-primary {
  background: var(--td-brand-color);
  border-color: var(--td-brand-color);
  color: var(--td-text-color-anti);
}
.btn-primary:hover {
  background: var(--td-brand-color-hover);
  border-color: var(--td-brand-color-hover);
  color: var(--td-text-color-anti);
}


.emoji-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 4px 16px 16px;
}

.group {
  padding: 12px 0;
}
.group + .group { border-top: 1px solid var(--td-component-border); }

.group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.group-title {
  font-size: var(--td-font-size-base);
  font-weight: 600;
  color: var(--td-text-color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.group-count {
  font-size: var(--td-font-size-s);
  font-weight: 400;
  color: var(--td-text-color-placeholder);
}

.group-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.group-empty {
  color: var(--td-text-color-placeholder);
  font-size: var(--td-font-size-s);
  padding: 8px 0;
}


.emoji-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: var(--td-radius-default);
  cursor: pointer;
  transition: background 0.12s ease;
  line-height: 0;
}
.emoji-item:hover { background: var(--td-bg-color-container-hover); }
.emoji-item img {
  height: 24px;
  width: auto;
  transform: translateZ(0);
  pointer-events: none;
}


.tooltip {
  position: fixed;
  z-index: 1500;
  max-width: 260px;
  padding: 6px 10px;
  border-radius: var(--td-radius-default);
  background: var(--td-text-color-primary);
  color: var(--td-bg-color-container);
  font-size: var(--td-font-size-s);
  line-height: 18px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.12s ease, transform 0.12s ease;
  word-break: break-all;
  box-shadow: var(--td-shadow-1);
}
.tooltip.is-visible { opacity: 1; transform: translateY(0); }


.toast-wrap {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}
.toast {
  min-width: 200px;
  max-width: 80vw;
  padding: 10px 16px;
  border-radius: var(--td-radius-medium);
  background: var(--td-bg-color-floating);
  color: var(--td-text-color-primary);
  font-size: var(--td-font-size-base);
  box-shadow: var(--td-shadow-2);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toast-in 0.25s ease;
  border: 1px solid var(--td-component-border);
}
.toast.is-out { animation: toast-out 0.2s ease forwards; }
.toast-icon { width: 18px; height: 18px; flex-shrink: 0; }
.toast-success .toast-icon { color: var(--td-success-color); }
.toast-error .toast-icon { color: var(--td-error-color); }
.toast-warning .toast-icon { color: var(--td-warning-color); }
.toast-info .toast-icon { color: var(--td-brand-color); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-8px); }
}


.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 1800;
  background: var(--td-mask-active);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.modal-mask.is-visible { opacity: 1; }
.modal {
  width: 360px;
  max-width: 90vw;
  background: var(--td-bg-color-container);
  border-radius: var(--td-radius-large);
  box-shadow: var(--td-shadow-2);
  transform: scale(0.96);
  transition: transform 0.2s ease;
  overflow: hidden;
}
.modal-mask.is-visible .modal { transform: scale(1); }
.modal-head {
  padding: 16px 20px 8px;
  font-size: var(--td-font-size-l);
  font-weight: 600;
  color: var(--td-text-color-primary);
}
.modal-body {
  padding: 8px 20px 20px;
  color: var(--td-text-color-secondary);
  font-size: var(--td-font-size-base);
}
.modal-body .emoji-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin: 12px 0;
  padding: 16px;
  background: var(--td-bg-color-secondarycontainer);
  border-radius: var(--td-radius-medium);
}
.modal-body .emoji-preview img { height: 48px; width: auto; }
.modal-body .emoji-preview-text {
  font-size: var(--td-font-size-s);
  color: var(--td-text-color-placeholder);
}
.modal-foot {
  padding: 12px 20px 20px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}


.footer {
  flex-shrink: 0;
  height: 40px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--td-font-size-s);
  color: var(--td-text-color-placeholder);
  border-top: 1px solid var(--td-component-border);
  background: var(--td-bg-color-container);
}

.toolbar-group-filter {
  position: relative;
}

.group-filter-dropdown {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 4px;
  width: 280px;
  max-height: 400px;
  background: var(--td-bg-color-container);
  border: 1px solid var(--td-component-border);
  border-radius: var(--td-radius-medium);
  box-shadow: var(--td-shadow-2);
  overflow: hidden;
  z-index: 500;
  display: none;
}
.group-filter-dropdown.is-visible {
  display: block;
  animation: dropdown-in 0.15s ease;
}

@keyframes dropdown-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-header {
  padding: 12px 16px;
  font-size: var(--td-font-size-base);
  font-weight: 600;
  color: var(--td-text-color-primary);
  border-bottom: 1px solid var(--td-component-border);
}

.dropdown-body {
  padding: 8px;
  max-height: 300px;
  overflow-y: auto;
}

.dropdown-footer {
  padding: 12px 16px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  border-top: 1px solid var(--td-component-border);
  background: var(--td-bg-color-secondarycontainer);
}

.group-filter-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--td-radius-default);
  cursor: pointer;
  font-size: var(--td-font-size-base);
  color: var(--td-text-color-primary);
  transition: background 0.12s ease;
}
.group-filter-item:hover {
  background: var(--td-bg-color-container-hover);
}
.group-filter-item.is-checked {
  background: var(--td-brand-color-light);
}
.group-filter-item.is-checked .checkbox {
  background: var(--td-brand-color);
  border-color: var(--td-brand-color);
}
.group-filter-item.is-checked .checkbox::after {
  opacity: 1;
}

.checkbox {
  width: 16px;
  height: 16px;
  border-radius: var(--td-radius-small);
  border: 1px solid var(--td-component-stroke);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.12s ease;
}
.checkbox::after {
  content: '';
  width: 8px;
  height: 4px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg);
  opacity: 0;
  transition: opacity 0.12s ease;
}


.filter-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  margin-left: 6px;
  border-radius: 9px;
  background: var(--td-error-color);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
}


.loading {
  padding: 24px;
  text-align: center;
  color: var(--td-text-color-placeholder);
  font-size: var(--td-font-size-s);
}


.group-expand {
  display: none;
}
.emoji-list.is-filtering .group-expand {
  display: inline-flex;
}


body[data-theme="dark"] .switch::after {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}
body[data-theme="dark"] .tooltip {
  background: #4a4a4a;
  color: rgba(255, 255, 255, 0.9);
}


@media (max-width: 640px) {
  .header { padding: 0 12px; height: 48px; }
  .header-logo { font-size: var(--td-font-size-base); }
  .header-link { padding: 4px 8px; font-size: var(--td-font-size-s); }
  .main { padding: 8px; }
  .toolbar { flex-wrap: wrap; gap: 8px; padding: 10px 12px; }
  .search-input { max-width: none; width: 100%; }
  .emoji-list { padding: 4px 12px 12px; }
}